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From Peter Klügl <pklu...@uni-wuerzburg.de>
Subject Re: Ruta check if feature is null.
Date Wed, 07 Jan 2015 13:26:51 GMT

I assume that this will only affect feature (match/assignment)
expressions concerning non-primitive values for now. So we could add a
new type of (dummy) expression only in combination with complex features.

I further assume that we do not need null-expression in combinations
with primitive values, right?

Thanks for the offer, but maybe it's better if I implement the changes
since I am not sure yet which and how many consequences the changes will
have, e.g., the compare method of FeatureMatchExpressions does not work
yet with complex features.



Am 06.01.2015 um 19:54 schrieb Silvestre Losada:
> Hi Peter,
> I opened new feature request, so if you wish you can explain to me the
> ideas that you have and I can implement it.
> Best.
> On 5 January 2015 at 11:38, Peter Klügl <pkluegl@uni-wuerzburg.de> wrote:
>> Hi,
>> that's not (yet) supported. You can open a feature request if you want.
>> This shouldn't be too complicated to implement. I already have some ideas...
>> This functionality is specified right now in ruta by using an additional
>> boolean feature, which stores whether the original feature was set.
>> Best,
>> Peter
>> Am 05.01.2015 um 10:41 schrieb Silvestre Losada:
>>  Hi all,
>>> I was looking into the UIMA ruta documentation and I dont know how to
>>> check
>>> in ruta script a feature of given annotation is null. Something like this
>>> MyAnnotation.feature== NULL{-> ...}
>>> is that possible?
>>> Kind regards.

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